Audits codebase test coverage and identifies critical testing gaps using deep AST-based caller analysis.
Tester Detective is a specialized quality assurance skill for Claude Code that replaces unreliable text searches with precise AST (Abstract Syntax Tree) structural analysis to map test relationships. By analyzing function callers through claudemem, it identifies exactly which tests cover specific logic and highlights high-impact coverage gaps. It is particularly useful for developers and QA engineers who need to audit test quality, find untested edge cases, and prioritize new test creation based on code importance and PageRank metrics.
Key Features
01Automated identification of high-priority untested functions
02PageRank integration to prioritize critical logic gaps
03AST-based caller analysis for precise test-to-code mapping
04Infrastructure mapping for test frameworks, mocks, and utilities
05Detailed test quality reporting and edge case auditing
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Use Cases
01Auditing an existing test suite to ensure edge cases and error paths are covered
02Mapping complex test infrastructure and helper utilities in large repositories
03Identifying critical business logic that lacks unit or integration tests
